A FIRE alarm at Three Bridges station continues to cause major rail disruption this morning (Friday).
The signalling centre at the station had been evacuated at 6am while emergency services investigated the problem.
Staff are now back in the building and services are beginning to run again.
However, there are still significant delays being reported by the public at East Croydon, Selhurst, Norbury and Thornton Heath stations.
Huge queues have formed at East Croydon station - running out of the entrance and on to the tram platform - and commuters have complained of a lack of information from the train operators.
Southern services had been unable to run between Brighton/Horsham and East Croydon and also between Portslade and Falmer.
Commuters faced delays of up to 60 minutes on all other routes.
Tickets are valid on London Underground and buses.
First Capital Connect services between East Croydon and Brighton are experiencing delays of 50 minutes until at least midday.
Passengers may use tickets on Southern, East Midlands Trains and via London Underground via any reasonable route.
London Overground services between West Croydon and Sydenham were also unable to run, with passengers advised to use buses between Gatwick Airport and Redhill.
There are reports of heavy traffic southbound on Brighton Road.
On London overground there were delays on the Circle, District and Hammersmith & City lines.
Anyone affected by this morning's delays due to Three Bridges issue can claim money back from Southern.
